Machine for operating upon cacao-beans.



G. E. B. BARNARD.

MACHINE FOR OPERATING UPON GAGAO BEANS.

APPLIOATION FILED JULY 24, 1909.

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G.E.B.BARNARD. MACHINE FOR OPERATING UPON GAGAO BEANS.

APPLICATION FILED JULY 24, 1909.

Patented Mar. 29, 1910..

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G. E. B. BARNARD.

MACHINE FOR OPERATING UPON GAGAO BEANS.

APPLICATION FILED JULY 24, 1909.

Patented Mar. 29,1910.

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GEORGE ERNEST BEAUSIRE BARNARD, OF ST. LUCIA, WEST INDIES.

MACHINE FOR. OPERATING UPON CACAO-IBEANS.

Application filed July 24, 1909.

To all whom it may concern:

Be it known that I, GEORGE ERNEST BEAU- smn BARNARD, a subject of theKing of Great Britain and Ireland, and residing at Park Estate, St.Lucia, IVest Indies, formerly of 28 Gordon Place, Kensington, in thecounty of London, England, have invented certain new and usefulImprovements in Connection with Machines for Operating upon Cacao-Beans,of which the following is a specification.

This invention relates to improvements in connection with machines foruse in polishing and cleaning cacao beans, the object being to devise amechanical apparatus which will work efliciently and will adequatelyobviate the present system of manual cleaning and polishing usuallyconsidered necessary.

The invention consists in mounting within a cylindrical or other casinga number of pressing feet or members which when the casing is revolvedare adapted to rise and fall and so press or work upon the beans as topolish the latter without bruising them as set forth in the claims.

The invention also comprises various details in construction hereinafterreferred to and claimed.

In the accompanying drawings, Figures 1 and 2 are respectively alongitudinal sectional elevation and a transverse sectional elevation ofone form of machine according to the invention adapted to be driven bypower. Figs. 3 and a illustrate hand driven mechanism for a similar typeof machine, Fig. 3 being a section on A-A, Fig. 4:, while Fig. f is asection on B-B, Fig. 3. Figs. 5 and 6 are detail views illustrating oneform of catch, which may be employed for securing the doors of themachine. Figs. 7 and 8 are respectively a longitudinal elevation and atransverse section of a machine showing a weighted guide frame.

In carrying out the invent-ion according to one mode a cylindricalcasing a is provided with trunnions b and 0 carried in suitablestandards cZ and e. A shaft f is adapted to pass through the hollowtrunnion c and to bear at one end f in a suitable recess or bearingwithin the other trunnion b. The trunnion b is provided with a drivingpulley 9 while the shaft f is provided with another driving pulley h.These driving pulleys are driven in opposite directions and at differentspeeds as hereinafter referred to. The

Specification of Letters Patent.

Patented Mar. 29, 1910.

Serial No. 509,433.

shaft is fitted with a number of eccentric sheaves 2' carrying eccentricstraps is to which heavily weighted feet 1 are pivoted as for instanceupon bolts m, the feet Z preferably having a curved or other suitablyshaped shoe n of rubber or other suitable polishing material of a naturewhich will not bruise the surface of the beans. The eccentrics aremounted in such a manner upon the shaft 7 that the independent feet Zact continuously upon the beans with a rising and falling motion, butsufficient clearance space beneath the lower ends of the feet and theinner surface, of the casing a is allowed to avoid crushing of the beans.between the feet and the walls of the casing. The casing a is fittedpreferably with two doors 0 arranged opposite to one another tofacilitate cleaning, the doors being hinged as at p and being adapted tobe securedin their open positions by any suitable device such as pins q,inserted through eyes 1 and 3 respectively provided upon the casing aand the doors 0. The doors may be clamped in their closed positions byany suitable type of fastening, convenient forms of fastening beingillustrated in Figs. 1, 2, 5, and 6, and consisting of loose clampingplates t, loosely mounted on pins a and adapted to be firmly secured byfly nuts '0. Obviously these details as well as the shape of the casinga and the manner of suspending and reciprocating the feet Z, may bevariously modified to suit the size of machine and other specialcircumstances.

In a machine of the type illustrated in Figs. 1 and 2, it has been foundin practice that very good results may be obtained by revolving thecasing at about 10 revolutions per minute and the shaft f at about 7 2revolutions per minute although these relative speeds may be variedwithin considerable limits.

When it is desired to treat smaller quantities of beans than is possibleupon machines of the type above referred to, a machine of smallerdimensions or having a less number of beaters or feet may be used andmay be driven by hand, in which case a suitable handle may be providedin place of the pulleys g and h, or said pulleys may be fitted withhandles. It is preferred, however, to drive the casing 64 and shaft 7"through gearing, a convenient arrangement being illustrated by way ofexample in Figs. 3 and 4 wherein the handle to is mounted upon a shortshaft 00, fitted with a pinion g meshing with an internal toothed ring 2on the casing a, the toothed ring .2 also meshing with an intermediatepinion 2, which in turn drives a pinion 3 on the shaft f. By thisarrangement, the shaft f and casing a are rotated in opposite directionsand at adequate relative speeds, and suitable purchase is obtained forthe operator.

It is preferred to rely upon the weight of the feet to maintain them intheir correct positions without rotating about the shaft 7, but shouldthe weight of the feet not be suflicient for this purpose in anyparticular machine, a guide frame 4, Figs. 7 and 8 may be adopted topositively guide the feet, the frame being preferably suspended from theshaft 7, and being weighted by weights 5 to insure its stationaryposition, while the shaft rotates.

The invention is not limited to any particular form of casing orarrangement of operating shaft within the same, or method of givingmotion thereto as the arrangement and disposition of the parts may bevaried to suit the size of machine that is to be constructed, the formof power that is to be employed and the extent or quantity of cacaobeans that is to be operated upon.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is 1. A machine for polishing cacao beans orthe like, comprising a casing, a shaft within said casing, eccentrics onsaid shaft, heavily weighted pressing feet pivoted to said eccentrics,rubber shoes on said feet, and means for rotating said shaft and easingat different speeds, substantiallj as and for the purpose hereinbeforeset forth.

2. A machine for polishing cacao beans or the like comprising acylindrical casing having two hinged doors, trunnions for the casingstandards adapted to support said trunnions, a shaft longitudinallysupported by said trunnions, eccentrics on said shaft, heavily weightedpressing feet pivoted to said eccentrics, and means for rotating saidshaft and easing, substantially as and for the purpose hereinbefore setforth.

3. In a machine for polishing cacao beans or the like, the combinationof a revolving casing, a shaft passing through said casing, presser feetwithin the casing and means between the presser feet and shaft forreciprocating the presser feet toward and from the revolving walls ofthe casing.

.and presser feet for l. In a machine for polishing cacao beans or thelike, the combination of a revolving casing, a revolving shaft passingthrough said casing, eccentrics 011 said shaft, presser feet mounted onthe eccentrics, and means for revolving the shaft to cause theeccentrics to reciprocate the presser feet toward and from the revolvingwalls of the casing.

5. In a machine for polishing cacao beans or the like, the combinationof a revolving casing, a revolving shaft in the casing, presser feet inthe casing and spaced from the walls thereof, means between the shaftreciprocating the latter toward and from the revolving wall of thecasing and means for pivotally mounting the presser feet.

(3. In a machine for polishing cacao beans or the like, the combinationwith a casing, a revolving shaft in the casing, presser feet within thecasing, means between the shaft and presser feet for reciprocating thelatter toward and from the casing and means for pivotally mounting thepresser feet.

' 7. In a machine for polishing cacao beans or the like, the combinationof a casing, a shaft within said casing, presser feet within the casing,means between the shaft and I presser feet for reciprocating the latterto- Ward and from the wall of the casing, and means for rotating theshaft and casing at different speeds.

8. In a machine for polishing cacao beans or the like, the combinationof a revolving casing, a shaft within the casing, presser feet withinthe casing, means on the shaft for reciprocating the presser feet towardand from the walls of the casing, means for pivotally mounting thepresser feet, and means for revolving the shaft and casing at differentspeeds.

9. In a machine for polishing cacao beans or the like, the combinationwith bearings, a casing having trunnions mounted in the bearings, eachof said trunnions having a bearing for a shaft, a shaft mounted in thelatter bearings, presser feet suspended from the shaft, means forreciprocating the presser feet toward and from the walls of the casingand means for revolving the cas ing and shaft at different speeds.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE ERNEST BEAUSIRE BARNARD.

\Vitnesses L. H. It. REILLY, J. A. M. SALMON.

